Arithmetic Operations in APT Program

Arithmetic operations can be carried out inside an APT program anywhere required. The normal rules of arithmetic as used in computer programming languages will be valid. The numbers can be specified directly as real numbers with decimal places. The arithmetic operators allowed are

Addition                    +

Subtraction                -

Multiplication              *

Division                       /          

and

Exponentiation            **

When carrying out the arithmetic operations the following priorities are applied:

Priority           

1    ( )

2     **

3     *, /

4     +, -

In addition to the normal arithmetic operations, it is possible to do some calculations using special functions as follows :

ABSF             Absolute value

ASINF            Angle of the sine in degrees

ACOSF          Angle of the cosine in degrees

ATANF           Angle of the tangent in degrees

COSF            Cosine of the angle in degrees

EXPF             Exponential, the value of the e to the power

LOGF            Natural logarithm

LOG10F        Logarithm to the base 10

SQRTF          Square root

SINF              Sine of the angle in degrees

TANF              Tangent of the angle in degrees

This will allow for any advanced calculations using these functions. Any calculations that are required in a block can be specified using all the above functions and operators, very similar to the normal algebraic operations. Some examples are given below:

Normal arithmetic                                            APT

BA = 5 (4 + 2)                                   BA = 5 * (4 + 2)

BB = 23                                             BB = 2 ** 3

BC =   1+2+5                                      BC = (1 + 2 + 5) / 4

             4

CB = √ 14.2 + 36 * 12                        CB = SQRTF (14.2 + 36 * 12)

CC = e ^{(A * 34 - 32 *| C - D|)                     CC = EXPF ((A * 34 - 32 * ABSG (C - D))}